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Water system · PWSID CO0124147

BLACK HAWK CITY OF

BLACK HAWK, CO · ~15,167 people served

Check your exact address → BLACK HAWK overview
100
Excellent
PurityRadar safety score

PWSID

CO0124147

State

Colorado

City

BLACK HAWK

Population served

15,167

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Sep 2024). Levels in parts per trillion (ppt).

Lithium

13,000 ppt

limit —

No federal limit

Violations & enforcement

96

Violations on record

0

Unaddressed

0

Health-based

48

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2021. Official EPA record →

Monitoring & reporting · EPA contaminant 1009 began Sep 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2020 Resolved
Monitoring & reporting · EPA contaminant 0200 began Feb 2020 Resolved
Monitoring · Lead & Copper Rule began Feb 2020 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2018 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2018 Resolved
Monitoring & reporting · Nitrate began Jan 2018 Resolved

Recent enforcement actions

  • State action · SOX Oct 2021
  • State action · SIE Oct 2021
  • State action · SIA Oct 2021
  • State action · SOX Aug 2020
  • State action · SIA Aug 2020
  • State action · SIE Aug 2020
  • State action · SIA Apr 2020
  • State action · SIE Apr 2020

This profile is built from EPA public records for system CO0124147 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.